Reclamation completing Folsom Dam safety work; trail detours to begin

By: Rachel Zirin, Senior Reporter
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The Bureau of Reclamation is completing its construction improvements at Folsom Reservoir’s Mormon Island Auxiliary Dam and Dikes 1, 4, 5 and 6 in the Granite Bay and Folsom Recreation areas, and trail segments will be temporarily closed.

Beginning January 2019 and ending around July 2019, Reclamation has designated an alternate route al all access points during construction.

The improvement modifications are being completed under Reclamation’s Safety of Dams Program to address minor runoff, drainage and erosion conditions along maintenance access roads initially modified under prior public safety activities that have been ongoing since 2007.

The work includes re-grading and resurfacing access roads at Dikes 4, 5 and 6 to better facilitate runoff; installation of vehicle traffic curbing at Dike 1; installation of drainage channels to better control runoff; removal of k-rail traffic barriers currently in place at Dike 1; and clean out of sediment deposition within downstream outfall channels.

For more information about the improvements, go to

Contact Kyle Keer with questions at 916-537-7111 (TTY 800-877-8339) or

Reclamation is the largest wholesale water supplier in the United States, and the nation’s second largest producer of hydroelectric power. Its facilities also provide substantial flood control, recreation, and fish and wildlife benefits.

For more information, go to